Beverage dispenser
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United States of America Patent
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-
Sep 17, 2002
Grant Date -
N/A
app pub date -
May 5, 2000
filing date -
May 8, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A beverage dispenser to provide desired ratios of mixed concentrate and diluent more accurately comprises a valve housing (10) having an inlet (12) and an outlet (44) for a concentrate and an inlet (14) and an outlet (30) for a diluent, a reciprocating piston (24) in a central passageway (22) between the inlets and outlets, the piston (24) being movable reciprocably between a first position in which flow to both outlets is blocked and a second position in which both outlets are open to flow, a flow rate sensor (20) for the concentrate and a flow rate sensor (40) for the diluent, the sensors being connected to a controller (50) whereby the diluent flow rate is adjusted by movement of the piston (24) according to the concentrate flow rate to achieve a predetermined ratio of concentrate to diluent for the dispensed beverage.
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